For how we live.
A short walk after eating blunts the post-meal blood-sugar spike. Trials in people with type 2 diabetes and in healthy adults agree, and light walking beats standing, which beats sitting still.
Rings and watches sold online promise needle-free glucose readings. The FDA says do not use any of them, and even research-grade non-invasive sensors miss the mark by about a fifth.
A closed-loop system links a glucose sensor to an insulin pump so software doses automatically. In the pivotal 6-month trial it raised time in target range by 11 points over a standard pump — a bounded gain, not a cure.
Three randomised trials found routine finger-prick testing produced no clinically meaningful change in long-term blood sugar for people whose type 2 diabetes is managed without insulin.
A meta-analysis of continuous glucose monitors in people without diabetes found a real effect on blood sugar — but only in those with prediabetes. In healthy users, the evidence for a metabolic benefit was not there.
One proposes a rate-of-change benchmark from 153 non-diabetic wearers. The other put ten young adults through food, exercise and a laboratory stress test to see what actually moves the line.